Brad Lightcap, OpenAI's chief operating officer since 2018, is leaving the company to start a new venture.

Lightcap provided few details about his next project, saying only that it involves "advancing OpenAI's mission from a different vantage point." He joined OpenAI as head of business development before becoming COO and helped steer the company through its transformation from research lab to commercial powerhouse.

The departure adds to a wave of executive exits as OpenAI prepares for its anticipated IPO. Former safety chief Fidji Simo, research scientist Bill Peebles, and product head Kevin Weil have all left in recent months.

Google's Gemini hits billion-user milestone

Google announced that its Gemini app surpassed 1 billion monthly active users, making it the company's 14th product to reach the milestone. The search giant reported heavy voice usage and more than 150 million images generated daily through the platform.

The milestone comes as Google competes with OpenAI's ChatGPT and Anthropic's Claude for consumer AI adoption. Gemini now has over 100 million active users on iOS alone.

Cursor prepares code review platform

Cursor is preparing to launch "Cursor Review," expanding beyond its AI code editor into automated code review workflows. The platform will sync repositories from GitHub and provide an automated pull request pipeline that alerts developers when human judgment is needed.

The rollout could arrive as early as this week, according to testing reports. Cursor Review will feature two main tabs: Codebase for repository management and Review for collaborative PR workflows between humans and AI agents.

Nvidia ships efficiency-focused model

Nvidia launched Nemotron 3.5 Lightning, a 30-billion-parameter mixture-of-experts model designed for high-volume agent tasks. The company claims the model delivers 4x faster output than comparable models while completing agentic tasks 30% faster than Qwen3.6-35B at matching accuracy.

Paired with Nvidia's new NeMo Switchyard routing library, the system can retain frontier-level task completion while cutting costs to roughly one-third of running Anthropic's Opus 4.8 alone.